Corinna Vinschen writes: > On November 18, 2014 12:54:22 PM CET, Olumide wrote: > >Thanks Corinna. > > > >My application does not explicitly use XSI IPC functions. It's an > >ordinary C++ application compiled with gcc. > > Your app calls shmat, either the exe or some DLL. > > >BTW, are ZN4muto7releaseEP7_cygtls and ZN4muto7acquireEm also XSI > >function? > > No, these are Cygwin-internal sync methods, apperantly called quite often
I suspect it's either the IPC functions are called quite often, or the profiler's timer interrupts are hitting so fast relative to the speed of IPC that you're always caught on a Windows kernel call (such as an event wait) underlying Cygwin's IPC implementation. Looks like the OP would have to debug the app and set a breakpoint at shmat to determine which DLL is using IPC if the app isn't. ..mark -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
